A seasonal variation in the incidence of ruptured abdominal aortic aneurysms

Ballaro, A.; Cortina-Borja, M.; Collin, J.

doi:10.1016/s1078-5884(98)80205-0

Cited by 50 publications

(47 citation statements)

References 17 publications

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“…month of January, much akin to the winter peak seen for other cardiovascular events. 3,11,17,18 This finding suggests a common link regarding the pathophysiology/triggering of these events. Subgroup analysis suggested that this monthly/seasonal pattern was more evident in patients who were young (aged Ͻ70 years), in women, and in normotensive and nondiabetic individuals but not among older patients, men, and hypertensive or diabetic patients, who are otherwise at a high-risk for most cardiovascular events.…”

Section: Discussionmentioning

confidence: 69%

Chronobiological Patterns of Acute Aortic Dissection

et al. 2002

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Background— Chronobiological rhythms have been shown to influence the occurrence of a variety of cardiovascular disorders. However, the effects of the time of the day, the day of the week, or monthly/seasonal changes on acute aortic dissection (AAD) have not been well studied. Methods and Results— Accordingly, we evaluated 957 patients enrolled in the International Registry of Acute Aortic Dissection (IRAD) between 1996 and 2000 (mean age 62±14 years, type A 61%). A χ 2 test for goodness of fit and partial Fourier analysis were used to evaluate nonuniformity and rhythmicity of AAD during circadian, weekly, and monthly periods. A significantly higher frequency of AAD occurred from 6:00 am to 12:00 noon compared with other time periods (12:00 noon to 6:00 pm , 6:00 pm to 12:00 midnight, and 12:00 midnight to 6:00 am ; P <0.001 by χ 2 test). Fourier analysis showed a highly significant circadian variation ( P <0.001) with a peak between 8:00 am and 9:00 am . Although no significant variation was found for the day of the week, the frequency of AAD was significantly higher during winter ( P =0.008 versus other seasons by χ 2 test). Fourier analysis confirmed this monthly variation with a peak in January ( P <0.001). Subgroup analysis identified a significant association for all subgroups with circadian rhythmicity. However, seasonal/monthly variations were observed only among patients aged <70 years, those with type B AAD, and those without hypertension or diabetes. Conclusions— Similar to other cardiovascular conditions, AAD exhibits significant circadian and seasonal/monthly variations. Our findings may have important implications for the prevention of AAD by tailoring treatment strategies to ensure maximal benefits during the vulnerable periods.

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Section: Discussionmentioning

confidence: 69%

Chronobiological Patterns of Acute Aortic Dissection

et al. 2002

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“…During peripheral vasoconstriction, systolic pressure increases more than diastolic which increases the pulse wave, leading to the rupture of abdominal aortica aneurysm. However, there are data (1,3) showing the outbreak of rupture of abdominal aortic aneurysm during spring and autumn. Therefore, it cannot be proven that rupture of abdominal aortic aneurysm is connected with low temperature and season of the year.…”

Section: Discussionmentioning

confidence: 99%

“…The influence of climatic factors on the rupture of abdominal aorta is geographically dependent. Studies carried out in Canada (1) and United Kingdom (2) have shown a higher incidence of rupture during autumn and spring, while studies in England, Wales (3) and Western Australia (4) during winter season. In the southwestern Greece, 78% of all ruptures occur in April and October (5).…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variations of the Incidence of Ruptured Abdominal Aortic Aneurysm at the Territory of the South Serbia

Damnjanović¹,

Jovanović²,

Dordevic³

et al. 2012

Acta Facultatis Medicae Naissensis

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Literature data on the association between the incidence of ruptured abdominal aorta and seasons are contradictory. The influence of climatic factors on the rupture of abdominal aorta is geographically dependent.The aim of this research was the investigation of the connection between the incidence of ruptured abdominal aorta and seasons at the territory of the southern Serbia.In this retrospective study, 59 consecutive patients, who were hospitalized in the Vascular Surgery Clinic, Clinical Center Niš, between 2008 and 2011, were involved, having the rupture of the infrarenal segment of the abdominal aorta. The incidence of the ruptured aneurysm of the abdominal aorta was analyzed with regard to calendar years, seasons and months.There was no significant connection between calendar year (χ 2 test=3,836, p=0,28), seasons (χ 2 test=3,4, p=0,334) and months (χ 2 test =11,109, p=0,434) and the incidence of the disease.According to the results of this study, it can be concluded that the incidence of ruptured abdominal aortic aneurysm in the southern Serbia is not related to seasons and months during the year.

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“…In addition to the research performed in the fields of pathology and molecular biology, investigations have been conducted focusing on other factors that are potentially related to aneurysm ruptures. One interesting possible factor in this regard is the influence of weather conditions, primarily the influence of the atmospheric pressure on the potential for an aneurysm rupture [5][6][7]. Despite the important role of the AAA's diameter itself, an aneurysm rupture may also occur either in cases of small aneurysms or in areas that do not necessarily have the largest diameter.…”

Section: Introductionmentioning

confidence: 99%

“…Conflicting results are found in the available literature concerning the influence of atmospheric pressure on aneurysm rupture [5][6][7][9][10][11][12][13]. The relatively small sizes of the evaluated populations and the lack of an analysis of the aneurysms' sizes did not allow determination of the influence of the atmospheric pressure on the AAA ruptures.…”

Section: Introductionmentioning

confidence: 99%

The influence of atmospheric pressure on aortic aneurysm rupture — is the diameter of the aneurysm important?

et al. 2015

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A b s t r a c tBackground: The rate of aortic aneurysm rupture correlates with the aneurysm's diameter, and a higher rate of rupture is observed in patients with larger aneurysms. According to the literature, contradictory results concerning the relationship between atmospheric pressure and aneurysm size have been reported. Aim:In this paper, we assessed the influence of changes in atmospheric pressure on abdominal aneurysm ruptures in relationship to the aneurysm's size. Methods:The records of 223 patients with ruptured abdominal aneurysms were evaluated. All of the patients had been admitted to the department in the period 1997-2007 from the Silesia region. The atmospheric pressures on the day of the rupture and on the days both before the rupture and between the rupture events were compared. The size of the aneurysm was also considered in the analysis.Results: There were no statistically significant differences in pressure between the days of rupture and the remainder of the days within an analysed period. The highest frequency of the admission of patients with a ruptured aortic aneurysm was observed during periods of winter and spring, when the highest mean values of atmospheric pressure were observed; however, this observation was not statistically confirmed. A statistically non-significant trend towards the higher rupture of large aneurysms (> 7 cm) was observed in the cases where the pressure increased between the day before the rupture and the day of the rupture. This trend was particularly pronounced in patients suffering from hypertension (p = 0.1). Conclusions:The results of this study do not support the hypothesis that there is a direct link between atmospheric pressure values and abdominal aortic aneurysm ruptures.

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A seasonal variation in the incidence of ruptured abdominal aortic aneurysms

Cited by 50 publications

References 17 publications

Chronobiological Patterns of Acute Aortic Dissection

Chronobiological Patterns of Acute Aortic Dissection

Seasonal Variations of the Incidence of Ruptured Abdominal Aortic Aneurysm at the Territory of the South Serbia

The influence of atmospheric pressure on aortic aneurysm rupture — is the diameter of the aneurysm important?

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